| No | Pattern | Freq | Relations |
|---|---|---|---|
| 1 | [modal v] [verb] [prep] a [adj] [noun sg] | 2857 |
|
| 2 | [modal v] [verb] at [art] [adj] [noun sg] | 285 |
|
| 3 | [modal v] [verb] at a [adj] [noun] | 99 |
|
